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A novel higher-order sliding mode control for DC-DC boost converter system in PMDC motor exploring mismatched disturbances (2024)
Journal Article
R, D., Srinivasan, G. K., & Rivera, M. (2024). A novel higher-order sliding mode control for DC-DC boost converter system in PMDC motor exploring mismatched disturbances. Circuit World, https://doi.org/10.1108/CW-06-2023-0144

Purpose: The purpose of this study is to stabilize the rotating speed of the permanent magnet direct current (PMDC) motor driven by a DC-DC boost converter under mismatched disturbances (i.e.) under varying load circumstances like constant, frictiona... Read More about A novel higher-order sliding mode control for DC-DC boost converter system in PMDC motor exploring mismatched disturbances.

Model Predictive Control of a Modular Multilevel Converter with Reduced Computational Burden (2024)
Journal Article
Kadhum, H., Watson, A. J., Rivera, M., Zanchetta, P., & Wheeler, P. (2024). Model Predictive Control of a Modular Multilevel Converter with Reduced Computational Burden. Energies, 17(11), Article 2519. https://doi.org/10.3390/en17112519

Recent advances in high-power applications employing voltage source converters have been primarily fuelled by the emergence of the modular multilevel converter (MMC) and its derivatives. Model predictive control (MPC) has emerged as an effective way... Read More about Model Predictive Control of a Modular Multilevel Converter with Reduced Computational Burden.

Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter (2024)
Journal Article
L, V., Kumar S, G., Rivera, M., & Babaei, E. (2024). Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter. IEEE Latin America Transactions, 22(6), 502-511. https://doi.org/10.1109/TLA.2024.10534310

Multi-Level Inverter (MLI) with and without cross-connecting switches is constructed using bi-directional and uni-directional switches and their performances are verified via a real-time experimentation. Here, a cross connecting switch inverter (CCSI... Read More about Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter.

Electricity Generation under the Climate Change Situation in Latin America: Trends and Challenges (2024)
Journal Article
Undurraga, J. P., Rivera, M., Cossutta, P., Garcés, A., Ayala, M., García, L. Y., & Wheeler, P. (2024). Electricity Generation under the Climate Change Situation in Latin America: Trends and Challenges. International Journal of Energy Economics and Policy, 14(2), 535-545. https://doi.org/10.32479/ijeep.15226

In a scenario of energy inequality, countries require stability for development and quality of life for their inhabitants. This paper addresses the reality of access to electrical energy and the effect of climate change on the potential of renewables... Read More about Electricity Generation under the Climate Change Situation in Latin America: Trends and Challenges.

A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives (2024)
Journal Article
Zerdali, E., Rivera, M., & Wheeler, P. (2024). A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives. IEEE Transactions on Power Electronics, 39(8), 9967-9981. https://doi.org/10.1109/tpel.2024.3370550

Model predictive control has been widely applied to AC electric drives over the last decade. Despite the proposed solutions, researchers are still seeking to find more effective solutions for weighting factor design, parameter dependency, current/tor... Read More about A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives.

A metaheuristic-based method for photovoltaic temperature computation under tropical conditions (2024)
Journal Article
Osorio, L., Moreno, M., Rivera, M., Tuninetti, V., Ruíz Chavarria, G., Duchêne, L., & Wheeler, P. (2024). A metaheuristic-based method for photovoltaic temperature computation under tropical conditions. Solar Energy, 271, Article 112414. https://doi.org/10.1016/j.solener.2024.112414

Tropical climates have favorable irradiation levels for the development of photovoltaic systems; however, high temperatures have a negative impact on the efficiency of solar cells. Since direct measurement of cell temperature is not common, mathemati... Read More about A metaheuristic-based method for photovoltaic temperature computation under tropical conditions.

An Optimal Switching Sequence Model Predictive Control Scheme for the 3L-NPC Converter with Output LC Filter (2024)
Journal Article
Herrera, F., Mora, A., Cárdenas, R., Díaz, M., Rodríguez, J., & Rivera, M. (2024). An Optimal Switching Sequence Model Predictive Control Scheme for the 3L-NPC Converter with Output LC Filter. Processes, 12(2), Article 348. https://doi.org/10.3390/pr12020348

In some applications of microgrids and distributed generation, it is necessary to feed islanded or stand-alone loads with high-quality voltage to provide low total harmonic distortion (THD). To fulfil these demands, an LC filter is usuallyconnected t... Read More about An Optimal Switching Sequence Model Predictive Control Scheme for the 3L-NPC Converter with Output LC Filter.

Improved Feedback Quantizer with Discrete Space Vector (2024)
Journal Article
Veillon, M., Espinosa, E., Melin, P., Mirzaeva, G., Rivera, M., Baier, C. R., & Ramirez, R. O. (2024). Improved Feedback Quantizer with Discrete Space Vector. Sensors, 24(1), Article 287. https://doi.org/10.3390/s24010287

The use of advanced modulation and control schemes for power converters, such as a Feedback Quantizer and Predictive Control, is widely studied in the literature. This work focuses on improving the closed-loop modulation scheme called Feedback Quanti... Read More about Improved Feedback Quantizer with Discrete Space Vector.

A Smart Crop Water Stress Index-Based IoT Solution for Precision Irrigation of Wine Grape (2023)
Journal Article
Fuentes-Peñailillo, F., Ortega-Farías, S., Acevedo-Opazo, C., Rivera, M., & Araya-Alman, M. (2024). A Smart Crop Water Stress Index-Based IoT Solution for Precision Irrigation of Wine Grape. Sensors, 24(1), Article 25. https://doi.org/10.3390/s24010025

The Scholander-type pressure chamber to measure midday stem water potential (MSWP) has been widely used to schedule irrigation in commercial vineyards. However, the limited number of sites that can be evaluated using the pressure chamber makes it dif... Read More about A Smart Crop Water Stress Index-Based IoT Solution for Precision Irrigation of Wine Grape.

Predictive Direct Speed Control of PMSM without Weighting Factors (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Wheeler, P., & Toledo, S. (2023). Predictive Direct Speed Control of PMSM without Weighting Factors. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). https://doi.org/10.1109/SPEC56436.2023.10408216

Predictive direct speed control (PDSC) of electric drives eliminates the cascade control structure and provides faster speed and current/torque response, but suffers from the selection of weighting factors (WFs). This paper proposes a PDSC strategy w... Read More about Predictive Direct Speed Control of PMSM without Weighting Factors.

Speed-Sensorless Predictive Direct Speed Control for PMSM Drives (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Wheeler, P., & Toledo, S. (2023). Speed-Sensorless Predictive Direct Speed Control for PMSM Drives. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). https://doi.org/10.1109/spec56436.2023.10408131

Predictive direct speed control (PDSC) of electric motors makes the control of both electrical and mechanical systems possible over a single control law by eliminating the cascade control structure. Speed-sensorless control also reduces the cost of e... Read More about Speed-Sensorless Predictive Direct Speed Control for PMSM Drives.

A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads (2023)
Presentation / Conference Contribution
Golkhandan, N. H., Rivera, M., Wheeler, P., Acuna, P., Rothen, J., & Davoudi, A. (2023). A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). https://doi.org/10.1109/SPEC56436.2023.10407689

This paper presents a new method for voltage distortion elimination in single-phase stand-alone inverters. In fact, the cooperation of a selective harmonic elimination approach with a feed-forward method eliminates the harmonics more effectively. In... Read More about A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads.

Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter (2023)
Presentation / Conference Contribution
Bagheri, F., Guler, N., Rivera, M., & Wheeler, P. (2023). Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter. In 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP). https://doi.org/10.1109/spec56436.2023.10408444

The single-phase split source inverter (SSI), operating as an inverter while boosting the input dc voltage, is a single-stage topology. This paper introduces a novel control strategy utilizing a Lyapunov-function controller for a SSI. The proposed Ly... Read More about Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter.

Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle (2023)
Journal Article
Huang, Z., Wei, Q., Xiao, X., Xia, Y., Rivera, M., & Wheeler, P. (2023). Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle. Energies, 16(22), Article 7482. https://doi.org/10.3390/en16227482

The Dual–Vector model predictive control (DV–MPC) method can improve the steady–state control performance of motor drives compared to using the single–vector method in one switching cycle. However, this performance enhancement generally increases the... Read More about Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle.

A honeycomb-like predictive controller with a reduced computational burden for three-level NPC converters (2023)
Journal Article
Silva, J. J., Rohten, J. A., Villarroel, F. A., Pulido, E. S., & Rivera, M. E. (2024). A honeycomb-like predictive controller with a reduced computational burden for three-level NPC converters. IEEE Transactions on Power Electronics, 39(2), 2051 - 2062. https://doi.org/10.1109/tpel.2023.3329644

This article presents a predictive control strategy to control a photovoltaic plant based on bifacial photovoltaic (BPV) panels connected to the electrical grid through a three-phase neutral point clamped (NPC) power converter. Electricity generation... Read More about A honeycomb-like predictive controller with a reduced computational burden for three-level NPC converters.

Encoderless Predictive Speed and Torque Control of an Induction Motor (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Zanchetta, P., Wheeler, P., & Ristić, L. (2023). Encoderless Predictive Speed and Torque Control of an Induction Motor. In 2023 22nd International Symposium on Power Electronics (Ee). https://doi.org/10.1109/ee59906.2023.10346148

Recently, model predictive control (MPC) has gained popularity in the control of power converters and electric drives. In this paper, the advantages of two MPC strategies are combined, and a cascaded encoderless predictive speed and torque control (P... Read More about Encoderless Predictive Speed and Torque Control of an Induction Motor.

Impact of Grid Unbalances on Electric Vehicle Chargers (2023)
Journal Article
Alwahaibi, S., Wheeler, P., Rivera, M., & Ahmed, M. R. (2023). Impact of Grid Unbalances on Electric Vehicle Chargers. Energies, 16(17), Article 6201. https://doi.org/10.3390/en16176201

There is a global trend to reduce emissions from cars through the adoption of other alternatives, such as electric vehicles (EVs). The increasing popularity of EVs has led to a growing demand for electric vehicle chargers. EV chargers are essential f... Read More about Impact of Grid Unbalances on Electric Vehicle Chargers.

A Detailed dSPACE-Based Implementation of Modulated Model Predictive Control for AC Microgrids (2023)
Journal Article
Villalón, A., Muñoz, C., Muñoz, J., & Rivera, M. (2023). A Detailed dSPACE-Based Implementation of Modulated Model Predictive Control for AC Microgrids. Sensors, 23(14), Article 6288. https://doi.org/10.3390/s23146288

Microgrids represent a promising energy technology, because of the inclusion in them of clean and smart energy technologies. They also represent research challenges, including controllability, stability, and implementation. This article presents a dS... Read More about A Detailed dSPACE-Based Implementation of Modulated Model Predictive Control for AC Microgrids.

Alternating Sequential Model Predictive Control of Matrix Converter (2023)
Presentation / Conference Contribution
Zhang, J., Rivera, M., & Wheeler, P. (2023). Alternating Sequential Model Predictive Control of Matrix Converter. . https://doi.org/10.1109/precede57319.2023.10174403

Weighting factor design is one of the challenges faced by model predictive control (MPC) when multiple control objectives are to be achieved simultaneously. This paper proposes an alternating sequential MPC (ASMPC) in which the cost functions are eva... Read More about Alternating Sequential Model Predictive Control of Matrix Converter.